Sains Malaysiana 42(1)(2013): 7–11

Anterior Tooth Shade Selection Procedure: Influence of Light Sources and Patient’s Position

(Prosedur Pemilihan Warna Gigi Anterior: Pengaruh Cahaya dan Kedudukan Pesakit)

Safura Anita Baharin*

Department of Operative Dentistry, Faculty of Dentistry, Universiti Kebangsaan Malaysia

Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia

Tey Yao Dong

Klinik Pergigian Sri Aman, Jalan Sabu, Sri Aman, 95000 Sarawak, Malaysia

Tan Wui Jin

Pejabat Pergigian Kawasan Kota Kinabalu, Lot 28, Tingkat 2, Blok C Heritage Plaza

Off Jalan Lintas, Luyang, 88300 Kota Kinabalu, Sabah, Malaysia

Diserahkan: 12 Disember 2011 / Diterima: 8 Mei 2012

ABSTRACT

Restoration of anterior teeth requires high precision in the shade selection of the restorative material due to its aesthetic appearance. Incorrect selection of shade for the restoration may result in patient’s dissatisfaction due to unaesthetic appearance. This study was conducted to determine the optimum lighting condition and preferable patient’s position that may influence the anterior tooth shade selection at the Faculty of Dentistry, Universiti Kebangsaan Malaysia. One hundred dental students from the 4th and 5th year were randomly selected to perform the shade selection procedure on the maxillary central incisor of two selected subjects. The shade of the tooth was predetermined using an intraoral spectrophotometer machine and the result was used as reference for the visual shade selection procedure done by the students. Four different clinical situations were selected and the shade selected by the students’ was compared with the predetermined shade. The result showed that the shade selection for anterior composite resin restoration is more reliable using the first reading taken (46%) when the patient is in the upright position (35.5%) with dental chair light off (56%). As a conclusion, the patient’s position, lighting condition and number of readings taken does influence the result of the shade selection for the anterior tooth.

Keywords: Anterior tooth; composite resin restoration; shade selection

ABSTRAK

Tampalan pada gigi hadapan memerlukan ketelitian yang tinggi semasa proses pemilihan warna bahan tersebut kerana ia adalah penting bagi estetik pesakit. Pemilihan warna tampalan yang tidak tepat akan menyebabkan pesakit tidak berpuas hati kerana warna tampalan yang tidak sepadan dengan warna gigi yang asal. Kajian ini dilakukan bagi menentukan keadaan pencahayaan yang optimum, kedudukan pesakit serta kriteria lain yang mungkin mempengaruhi pemilihan warna bagi tampalan pada gigi hadapan di Fakulti Pergigian, Universiti Kebangsaan Malaysia. Seramai seratus orang pelajar pergigian daripada Tahun 4 dan 5 telah dipilih secara rawak untuk melakukan prosedur pemilihan warna bahan tampalan pada dua orang subjek yang dipilih. Sebelum pelajar melakukan prosedur pemilihan warna tampalan pada gigi subjek, warna pada gigi subjek yang dipilih telah ditentukan dengan menggunakan mesin spektofotometer dan keputusan daripada mesin tersebut digunakan sebagai rujukan bagi prosedur yang akan dilakukan oleh pelajar. Pelajar dikehendaki membuat pemilihan warna pada empat situasi yang berbeza dan keputusan mereka akan dibandingkan dengan warna rujukan yang dikenal pasti menggunakan mesin. Keputusan ujian ini menunjukkan bagi prosedur pemilihan warna pada gigi hadapan, keputusan adalah lebih tepat apabila diambil pada bacaan pertama (46%), apabila pesakit di dalam keadaan duduk tegak (35.5%) dan cahaya lampu tumpu dipadamkan (56%). Kajian ini menunjukkan bahawa kedudukan pesakit, pencahayaan serta bilangan bacaan yang diambil mempengaruhi keputusan pemilihan warna bagi bahan tampalan pada gigi hadapan.

Kata kunci: Gigi anterior; pemilihan warna; tampalan komposit resin

RUJUKAN

Corcodel, N., Helling, S., Rammelsberg, P. & Hassel, A.J. 2010. Metameric effect between natural teeth and the shade tabs of a shade guide. European Journal of Oral Science 118: 311-316.

Corcodel, N., Rammaelsberg, P., Moldovan, O., Dreyhaupt, J., Hassel, A.J. & Priv, Doz. 2009. Effect of external light conditions during matching of tooth color: An intraindividual comparison. International Journal of Prosthodontic 22(1): 75-77.

Curd, F.M., Jasinevicuis, T.R., Graves, A., Cox, V. & Sadan, V. 2006. Comparison of the shade matching ability of dental students using two light sources. Journal of Prosthetic Dentistry 96(6): 391-396.

Dagg, H., O’Connel, B., Claffey, N., Byrne, D. & Gorman, C. 2004. The influence of some different factors on the accuracy of shade selection. Journal of Oral Rehabilitation 31: 900-904.

Della Bona, A., Barrett, A.A., Rosa, V. & Pinzetta, C. 2009. Visual and instrumental agreement in dental shade selection: Three distinct observer populations and shade matching protocols. Dental Material 25(2): 276-281.

Dozic, A., Kleverlaan, C.J., El-Zohairy, A., Feilzer, A.J. & Khashayar, G. 2007. Performance of five commercially available tooth color-measuring devices. Journal of Prosthodontic 16(2): 93-100.

Haddad, H.J., Jakstat, H.A., Arnetzl, G., Borbely, J., Vichi, A., Dumfahrt, H., Renault, P. & Corcodel, N. 2009. Does gender and experience influence shade matching quality? Journal of Dentistry 37(1): e40-e44.

Jarad, F.D., Russell, M.D. & Moss, B.W. 2005. The use of digital imaging for colour matching and communication in restorative dentistry. British Dental Journal 199(1): 43-49.

Meireless, S.S., Demarco, F.F., dos Santos Ida, S., Dumith Sde, C. & Bona, A.D. 2008. Validation and reliability of visual assessment with a shade guide for tooth-colour classification. Operative Dentistry 33(2): 121-126.

Okubo, S.R., Kanawati, A., Richards, M.W. & Childress, S. 1998. Evaluation of visual and instrument shade matching. Journal of Prosthetic Dentistry 80(6): 642-648.

Van der Burgt, T.P., Bosch, J.J., Borsboom, P.C. & Kortsmith, W.J. 1990. A comparison of new and conventional methods for quantification of tooth color. Journal of Prosthetic Dentistry 63(2): 155-162.

*Pengarang untuk surat-menyurat; email: safurabaharin@yahoo.com